Dynamic control system for cellular camping and passive monitoring of LTE activity

Abstract

A system for monitoring cellular communications including a passive sensor device, processors, and memory devices. The memory devices having instructions that cause the processors to identify active downlink channels using a first radio to monitor each channel in a cellular spectrum and store downlink channel information, including configuration data, for each of the identified active downlink channels. The processors identify active uplink channels using a second radio to monitor each channel in the cellular spectrum and store uplink channel information for each of the identified active uplink channels. The processors correlate one of the active uplink channels with a corresponding active downlink channel and tune a third radio to the active uplink channel using the configuration data for the corresponding active downlink channel. The processors also tune a fourth radio to the active downlink channel corresponding to the at least one active uplink channel using the corresponding configuration data.

What is claimed is: 
     
       1. A system for monitoring cellular communications, comprising:
 a passive sensor device, including:
 at least four radios; 
 one or more processors; and 
 one or more memory devices having stored thereon instructions that when executed by the one or more processors cause the one or more processors to:
 identify one or more active downlink channels using the first radio to monitor each channel in a cellular spectrum for downlink activity; 
 store downlink channel information, including configuration data, for each of the identified one or more active downlink channels; 
 identify one or more active uplink channels using the second radio to monitor each channel in the cellular spectrum for uplink activity; 
 store uplink channel information for each of the identified one or more active uplink channels; 
 correlate at least one of the one or more active uplink channels with a corresponding one of the active downlink channels; 
 tune the third radio to the at least one active uplink channel using the configuration data for the corresponding active downlink channel; and 
 tune the fourth radio to the active downlink channel corresponding to the at least one active uplink channel using the corresponding configuration data. 
 
 
 
     
     
       2. The system of  claim 1 , wherein the at least four radios are software defined radios. 
     
     
       3. The system of  claim 1 , further comprising instructions to capture information related to a mobile wireless device communicating on the at least one active uplink channel and the corresponding active downlink channel. 
     
     
       4. The system of  claim 1 , further comprising instructions to periodically update the identified one or more active downlink channels using the first radio to monitor each channel in the cellular spectrum for downlink activity and store updated downlink channel information, including configuration data, for each of the updated one or more active downlink channels. 
     
     
       5. The system of  claim 1 , further comprising instructions to periodically update the identified one or more active uplink channels using the second radio to monitor each channel in the cellular spectrum for uplink activity and store updated uplink channel information for each of the updated one or more active uplink channels. 
     
     
       6. The system of  claim 1 , wherein the at least one active uplink channel is a first active uplink channel and further comprising instructions to identify a second active uplink channel and tune a fifth radio to the second active uplink channel. 
     
     
       7. The system of  claim 1 , wherein the at least one active uplink channel is a first active uplink channel and further comprising instructions to:
 identify a second active uplink channel; 
 determine which of the radios is tuned to a channel having the least activity based on a selected decision criteria; and 
 tune the radio with the least activity to the second active uplink channel. 
 
     
     
       8. The system of  claim 1 , wherein the downlink channel information and the uplink channel information is stored on one or more network databases or stored locally on the passive sensor device. 
     
     
       9. A system for monitoring cellular communications, comprising:
 a passive sensor device, including:
 one or more radios; 
 one or more processors; and 
 one or more memory devices having stored thereon instructions that when executed by the one or more processors cause the one or more processors to:
 identify one or more active downlink channels using at least one of the one or more radios to monitor each channel in a cellular spectrum for downlink activity, wherein the at least one of the one or more radios monitoring each channel for downlink activity is a first software defined radio; 
 store downlink channel information, including configuration data, for each of the identified one or more active downlink channels; 
 identify one or more active uplink channels using at least one of the one or more radios to monitor each channel in the cellular spectrum for uplink activity, wherein the at least one of the one or more radios monitoring each channel for uplink activity is a second software defined radio that is different from the first; 
 store uplink channel information for each of the identified one or more active uplink channels; 
 correlate at least one of the one or more active uplink channels with a corresponding one of the active downlink channels; 
 tune at least one of the one or more radios to the at least one active uplink channel using the configuration data for the corresponding active downlink channel; 
 tune at least one of the one or more radios to the active downlink channel corresponding to the at least one active uplink channel using the corresponding configuration data; and 
 capture information related to a mobile wireless device communicating on the at least one active uplink channel and the corresponding active downlink channel. 
 
 
 
     
     
       10. The system of  claim 9 , wherein the one or more radios comprise one or more software defined radios. 
     
     
       11. The system of  claim 9 , wherein the at least one active uplink channel is a first active uplink channel and further comprising instructions to identify a second active uplink channel and tune at least one of the one or more radios to the second active uplink channel. 
     
     
       12. A method for monitoring cellular communications, comprising:
 identifying one or more active downlink channels using a first radio to passively monitor each channel in a cellular spectrum for downlink activity; 
 storing downlink channel information, including configuration data, for each of the identified one or more active downlink channels; 
 identifying one or more active uplink channels using a second radio to passively monitor each channel in the cellular spectrum for uplink activity; 
 storing uplink channel information for each of the identified one or more active uplink channels; 
 correlating at least one of the one or more active uplink channels with a corresponding one of the active downlink channels; 
 tuning a third radio to the at least one active uplink channel using the configuration data for the corresponding active downlink channel; and 
 tuning a fourth radio to the active downlink channel corresponding to the at least one active uplink channel using the corresponding configuration data. 
 
     
     
       13. The method of  claim 12 , wherein the at least four radios are software defined radios. 
     
     
       14. The method of  claim 12 , further comprising capturing information related to a mobile wireless device communicating on the at least one active uplink channel and the corresponding active downlink channel. 
     
     
       15. The method of  claim 12 , further comprising periodically updating the identified one or more active downlink channels using the first radio to monitor each channel in the cellular spectrum for downlink activity and storing updated downlink channel information, including configuration data, for each of the updated one or more active downlink channels. 
     
     
       16. The method of  claim 12 , further comprising periodically updating the identified one or more active uplink channels using the second radio to monitor each channel in the cellular spectrum for uplink activity and storing updated uplink channel information for each of the updated one or more active uplink channels. 
     
     
       17. The method of  claim 12 , wherein the at least one active uplink channel is a first active uplink channel and further comprising identifying a second active uplink channel and tuning a fifth radio to the second active uplink channel. 
     
     
       18. The method of  claim 12 , wherein the at least one active uplink channel is a first active uplink channel and further comprising:
 identifying a second active uplink channel; 
 determining which of the radios is tuned to a channel having the least activity based on a selected decision criteria; and 
 tuning the radio with the least activity to the second active uplink channel. 
 
     
     
       19. The method of  claim 12 , wherein the downlink channel information and the uplink channel information is stored on one or more network databases or stored locally on the passive sensor device.